Sunspot drawing of 2013-9-21

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https://doi.org/10.7891/e-manuscripta-157670



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2013-09-21
07:00
Hs 1304.6:9968
https://doi.org/10.7891/e-manuscripta-157670
Observer : Marco Cagnotti
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
265 1 1 A -4.1 144.9
270 1 2 A 0.4 131.0
273 3 6 C -18.1 55.5
276 6 11 D 19.7 77.3
277 4 6 D 7.4 28.4
5 15 26